January 2019 Tahoe to Whitney High Sierra Backpacking Calendar

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Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
Happy New Year of note: FULL WINTER CONDITIONS 2019 Be it a Winter Season of drought or deluge, The Fall Gear has been stowed or complimented by the Heavy Gear of Winter. What's Going On? 2018 See December of 2018 High Sierra Reports Winter Gear Elements Required: October 31 Fall Gear Elements Required: October 9 What's Going On? 2017 See December of 2017 High Sierra Reports FALL 2017 to WINTER 2018 On September 15th we shifted from Summer to Fall Gear. On November 3rd Winter Gear was Required. After November 26 FULL Winter gear, skills, and fitness levels required. All High Sierra Weather Info Latest Daily Snow Depth Summary Daily Sierra Snowpack % of Normal pdf Daily Snow-Water & Percent of Average All Precipitation-Snow Data All Snow Surveys SWC & Snow Depth Yosemite-Hoover-Desolation & John Muir Trail Hikers: Time to Order Next Year's Permits! Reserved permits for June 2018 now available from Yosemite, Hoover, and Desolation Wilderness Areas. In other words, Yosemite, Desolation, and Hoover Wilderness Areas all offer advanced reservations about six months ahead of your desired hiking dates. This means now is the time to get your JMT permit application, along with other popular hikes, into the Man. All Permits Yosemite Permits Desolation Wilderness		1 Clear, Crisp Winds Diminished potential for a Very COLD Night Very Cold Last Night 2019 Persistant Blocking Ridge Extended Clear Weather REALTIME High Sierra Crestline Reporting Stations (Compare with Dec 31st) Echo Peak 7652 feet Carson Pass 8388 feet Ebbetts Pass 8660 feet Leavitt Lake 9602 feet Marine Base 6748 feet East Flank Deadman Creek 9250 feet Tuolumne Meadows 8600 feet Tioga Pass/Dana 9798 feet Gem Pass 10750 feet Mammoth Pass 9500 feet South Lake Cabin 9580 feet Big Pine Sawmill 10200 feet Bishop Pass 11972 feet Charlotte Lake 10398 feet Upr Tyndall Creek 11441 feet Crabtree Meadow 10,700 feet All High Sierra Reporting Stations LAST YEAR NEXT WEEK TOP 2018 US COLD PLUNGE Central, Central-South, & Northeast US: Temps at, and Plunging to Record Levels, Continuing through New Year. What's Happening Here? Polar Vortex Weakening 2017 Overcast and Warmer, with still Cold-sprinkles 2017 Snow Depth, 24 hour high & low temps	2 Continued Clear, Crisp potential for a Very COLD Night Very Cold Last Night 2019 Persistant Blocking Ridge Extended Clear Weather WARM Days COLD Nights MODIS High Sierra Satellite View LAST YEAR NEXT WEEK TOP Informative "Normal" Vs. Now Forcasts & Reality vs. Averages Forecasts All High Sierra ZONE FORECASTS All High Sierra POINT FORECASTS 2018 2018 January 2 HIGH SIERRA REPORT What we're seeing today is one step in a transition between the last and the next in the series of vast, massive cells of persistant High Pressure air that have been covering the West Coast of California (if not the whole West Coast of North America) over the whole month of December. 2017 REPORT Vast High in NE Pacific	3 Clear to Cloudy potential for a COLD Night Very Cold Last Night 2019 Persistant Blocking Ridge Extended Clear Weather breaking today Ridge not as strong as last year's... WARM Days COLD Nights Last Snow Temp Readings December 31, 2018 2019 Current Snowpack: Percent of Average for January 3. N Sierra: 62% Cen. Sierra:68% S Sierra: 70% Ca State: 67% Statewide Summary of Snow Water Content PDF Next Reading January 7 Last Year's Reading Seasonal Progress Predicted El Nino a Dud, so far The New Abnormal THE SNOWPACK *GRAPHICS* Date-Adjustable High Sierra Snowpack Status *GRAPHICS* NOAA-NOHRSC The High Sierra 1-3-19 SATELLITE SKY EYES MODIS High Sierra Satellite View REPORTING STATIONS NEW Temp & Snow Tables by Watershed and Highway Corridor Also See All High Sierra Snowpack Data 2018 2018 *Pre-Storm* Current Snowpack: Percent of Average for January 3. N Sierra: 21% Cen. Sierra:29% S Sierra: 20% Ca State: 24% Statewide Summary of Snow Water Content PDF 2017 DEC 29 SNOW 2017 Stormy and Cool, but still Cold-regular precip, light intensity strengthening to moderate into late PM 2017 Today's Snow Depth, 24 hour high & low temp	4 Cloudy to Stormy Reno & San J Winter Watch-Advisory COOLED HAZARDS Seven Day Freezing Temperature Probability All High Sierra Weather And the factors creating it 2019 *HIGH SIERRA* --Winter-- 4th Temp-Snow Check Last Report: December 31, 2018 Next Report: January 6, 2019 Let's check our reporting station snow & temp readings after the last nine days of clear and cooling weather behind the big High of the Coast of USA. Storm expected this evening, & next few days. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 17" -2.0 7618 feet (8.40 H2O) +.3 46 & 34 +/+ Echo Peak 31" -1" 7652 feet (15.40 H2O) +0.1 50 & 37 +/+ American-Yuba Watersheds Carson Pass 29" -1 8388 feet (8.80" H2O) +0.1 45 & 28 +/+ Carson-Walker Watersheds Ebbetts Pass 33" -3 8660 feet (12.90" H2O) +0.2 51 & 34 +/+ Leavitt Lake 45" -3 9602 feet, East Flank (13.60" H20) +0.2 45 & 36 +/+ Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB-WIND 65 & 15 -/- Mokelumne-Stanislaus Watersheds Deadman Creek 13.29" +5.4 9250 feet, West Flank (6.01" H20) +0.17 47 & 19 +/+ Tuolumne-Merced Watersheds Tenaya Lake 33.59" -0.63" 8163 feet, West Flank (3.91") H20 =0.0 48 & 15 +/+ Tuolumne Meadows 8600 feet, West Flank 25.36" - 1.4" (3.95") H20 = 0.00 52 & 11 +/+ Tioga Pass/Dana 9798 feet 26.06" −1.23 9.42" H20 (+.05) 43 & 21 +/+ Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (9.32) H2O) =0.00 temps bad Mammoth Pass 9500 feet 37.88" Snow -1.86" (11.20" H2O) +0.28 48 & 27 +/+ South Lake Cabin 9580 feet, East Flank (Snow removed ") (21.3 H2O) =0.0 suspect 54 & 25 +/+ Big Pine Sawmill 10200 feet, East Flank 12.10" Snow −1.3" 43 & 23 +/+ Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank TEMPS ONLY -- & -- BAD (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 30.36" +0.8" (x.xx" H2O +x.xx") 48 & 15 +/+ (station reporting again!) Crabtree Meadow 10,700 feet (.-- H2O) +0.06 (suspect) -- & -- x/x All High Sierra Reporting Stations Clear for Nine Days, Storm expected this evening.	5 Stormy Light to Moderate Precip STATUS REPORT extended precip possible Informative "Normal" Vs. Now Forcasts & Reality vs. Averages Winds? Weather? NorCal Graphics SoCal & SW US Precipitation Quantitative Precipitation Forecasts: RAIN FORECASTS Let's look at the Big Picture The Pacific Ocean Set this for 14 days & Display Loop Below US Weather Map All Maps Forecasts All High Sierra ZONE FORECASTS All High Sierra POINT FORECASTS All High Sierra Weather And the factors creating it LAST YEAR NEXT WEEK TOP 2018 Snow Depth & Temps LAST YEAR NEXT WEEK TOP 2017 Clear and Cold Huge tropical flow lining up from the Southwest, heavy precip expected from tomorrow night through next Friday... 2017 Snow Depth, 24 hour high & low temps 7 Day Precip Forecast 2017 NOTE La Nina still puttering along... LAST YEAR NEXT WEEK TOP
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
6 Steady Stormy Light to Moderate Precip WINTER STORM WARNING Forecast Calendar STATUS REPORT extended precip possible Stationary Frontline along Northwest Coast of USA COOLED TEMPS It's no longer warmer than normal, but not really cold, but a nice cold 2019 *HIGH SIERRA* --Winter-- 5th Temp-Snow Check Last Report: January 4, 2019 Next Report: Tomorrow Let's check our reporting station snow & temp readings after the last day of steady precip, and it's still coming down! Click the stations below for the latest reports. Storms expected this evening, & next few days. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 30" +13.0 7618 feet (9.40 H2O) +1.0 37 & 23 -/- Echo Peak 41" +10" 7652 feet (16.40 H2O) +1.0 36 & 22 -/- American-Yuba Watersheds Carson Pass 41" +12 8388 feet (9.80" H2O) +1.0 32 & 19 -/- Carson-Walker Watersheds Ebbetts Pass 49" +16 8660 feet (14.30" H2O) +1.4 31 & 18 -/- Leavitt Lake 63" +18 9602 feet, East Flank (14.80" H20) +1.2 25 & 17 -/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB-WIND 58 & 29 -/+ Mokelumne-Stanislaus Watersheds Deadman Creek 21.64" +8.35 9250 feet, West Flank (6.61" H20) +0.6 25 & 13 -/- Tuolumne-Merced Watersheds Tenaya Lake 48.07" +14.48" 8163 feet, West Flank (3.91") H20 =0.0 30 & 15 -/= Tuolumne Meadows 8600 feet, West Flank 40.80"+15.44" (3.95") H20 = 0.00 ?? 25 & 10 -/- Tioga Pass/Dana 9798 feet 28.10" +2.04 9.43" H20 (+.1) 20 & 8 -/- Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (10.15) H2O) +0.83 temps bad Mammoth Pass 9500 feet 55.13" Snow +17.25" (13.00" H2O) +1.80 24 & 14 -/- South Lake Cabin 9580 feet, East Flank (Snow removed ") (21.5 H2O) +0.2 suspect 23 & 13 -/- Big Pine Sawmill 10200 feet, East Flank 22.00" Snow +9.9" 20 & 10 -/- Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank TEMPS ONLY -- & -- BAD (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 38.60" +8.24" (x.xx" H2O +x.xx") 19 & 5 -/- (station reporting again!) Crabtree Meadow 10,700 feet (.-- H2O) +0.06 (suspect) -- & -- x/x All High Sierra Reporting Stations 24 hours of light to moderate precip , Low approaching & expected off N Cal Coast this evening. 2018, 6th Snow Depth & Temps 2017 Storm Time Tropical Pounding RAIN ACROSS SIERRA CREST Huge tropical flow transporting vast amount of warm moisture from the Southwest, heavy precip. Raining Across the Sierra Crest	7 Cloudy Interlude Not Much Precip After a Huge Deposition of Precipitation Which still leaves us below average, but looking at a line of storms this week. 2019 Current Snowpack: Percent of Average for January 7. N Sierra: 79% +17% in 4 days!! Cen. Sierra:87% +19% in 4 days! S Sierra: 86% +16% in 4 days! Ca State: 84% +17% in 4 days! Last Reading January 3 Statewide Summary of Snow Water Content PDF 2018 snowpack There was a widespread, steady moderate to light precip for about 36 hours 2019 *HIGH SIERRA* --Winter-- 6th Temp-Snow Check Last Report: Yesterday Next Report: January 10, 2019 Let's check our reporting station snow & temp readings after the last day of steady precip, which continued after yesterday's reading! Click the stations below for the latest reports. Storms expected tomorrow evening, & next few days. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 37" +7.0 7618 feet (11.10 H2O) +1.7 36 & 30 -/+ Echo Peak 49" +8" 7652 feet (18.00 H2O) +1.6 41 & 30 +/+ American-Yuba Watersheds Carson Pass 48" +7 8388 feet (11.70" H2O) +1.9 33 & 28 +/+ Carson-Walker Watersheds Ebbetts Pass 57" +8 8660 feet (16.70" H2O) +2.4 36 & 28 +/+ Leavitt Lake 70" +7 9602 feet, East Flank (17.30" H20) +2.5 33 & 26 +/+ Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB-WIND 49 & 27 -/- Mokelumne-Stanislaus Watersheds Deadman Creek 14.24" -7.4 9250 feet, West Flank (7.43" H20) +0.82 30 & 24 +/+ Tuolumne-Merced Watersheds Tenaya Lake 56.23" +8.16" 8163 feet, West Flank (3.91") H20 =0.0?? 34 & 26 +/+ Tuolumne Meadows 8600 feet, West Flank 45.58"+4.78" (3.95") H20 = 0.00 ?? 31 & 22 +/+ Tioga Pass/Dana 9798 feet 48.11" +20.01 9.43" H20 (+.0) ??? 22 & 28 +/+ Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (11.55) H2O) +1.4 temps bad Mammoth Pass 9500 feet 68.28" Snow +13.15" (15.28" H2O) +2.28 32 & 24 +/+ South Lake Cabin 9580 feet, East Flank (Snow removed ") (21.6 H2O) +0.1 suspect 39 & 24 +/+ Big Pine Sawmill 10200 feet, East Flank 23.90" Snow +1.9" 34 & 22 +/+ Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank TEMPS ONLY -- & -- BAD (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 43.34" +4.74" (x.xx" H2O +x.xx") 28 & 19 +/+ (station reporting again!) Crabtree Meadow 10,700 feet (.-- H2O) +0.06 (suspect) -- & -- x/x All High Sierra Reporting Stations 24+ hours of light to moderate precip , Next Low approaching & expected off N Cal Coast tomorrow evening. 2017 Storm Time Tropical Pounding Rain on the Sierra Crest. Ground Saturating, All Rivers Rising.	8 Increasingly Cloudy Interlude Not Much Precip until Late Adjust the graphics below, from the 3rd, to the 7th, to see the scale of snowpack increase. THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE THIRD* *GRAPHICS* NOAA-NOHRSC The High Sierra 1-3-19 SATELLITE SKY EYES MODIS High Sierra Satellite View REPORTING STATIONS NEW Temp & Snow Tables by Watershed and Highway Corridor Also See All High Sierra Snowpack Data 2017 Snow Depth, 24 hour high & low temps	9 Steady Stormy Light to Moderate Precip Front Crossing Coast All Radar All Satellites HAZARDS LAST WEEK NEXT WEEK TOP LAST WEEK NEXT WEEK TOP 2018, 9th Snow Depth & Temps	10 Cloudy-Foggy Interlude Not Much Precip Season Normal! 2019 Current Snowpack: Percent of Average for January 10. N Sierra: 90% +11% in 3 days!! Cen. Sierra:89% +2% in 3 days! S Sierra: 90% +4% in 3 days! Ca State: 91% +7% in 3 days! Last Reading January 7 Statewide Summary of Snow Water Content PDF 2018 snowpack 2019 *HIGH SIERRA* --Winter-- 7th Temp-Snow Check Last Report: 7th Next Report: January 15, 2019 Let's check our reporting station snow & temp readings after the last day of steady precip, which terminated today. Click the stations below for the latest reports. Storms expected tomorrow evening, & next few days. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 36" -1.0 7618 feet (11.70 H2O) +0.6 38 & 29 +/- Echo Peak 51 " +2" 7652 feet (18.60 H2O) +0.6 42 & 29 +/- American-Yuba Watersheds Carson Pass 48" =0 8388 feet (12.30" H2O) +0.6 36 & 20 +/- Carson-Walker Watersheds Ebbetts Pass 52" -5 8660 feet (17.80" H2O) +1.1 41 & 20 +/- Leavitt Lake 76" +6 9602 feet, East Flank (18.70" H20) +1.4 38 & 22 +/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB-WIND 55 & 19 +/- Mokelumne-Stanislaus Watersheds Deadman Creek 13.37" -0.87 9250 feet, West Flank (7.86" H20) +0.43 37 & 5 +/- Tuolumne-Merced Watersheds Tenaya Lake 53.87" +2.36" 8163 feet, West Flank (4.48") H20 +0.57 37 & 10 +/- Tuolumne Meadows 8600 feet, West Flank 44.38" -1.2" (4.85") H20 + .90 ?? 42 & 0 +/- Tioga Pass/Dana 9798 feet 45.36" -2.75 9.5" H20 (+.07) 32 & 5 +/- Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (12.15) H2O) +0.6 temps bad Mammoth Pass 9500 feet 65.53" Snow -2.75" (16.76" H2O) +0.48 36 & 13 +/- South Lake Cabin 9580 feet, East Flank (Snow removed ") (21.6 H2O) = 0.0 suspect 47 & 12 +/- Big Pine Sawmill 10200 feet, East Flank 23.90" Snow =0.0" 34 & 9 =/- Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank TEMPS ONLY -- & -- BAD (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 42.99" -0.35" (x.xx" H2O +x.xx") 32 & 13 +/- (station reporting again!) Crabtree Meadow 10,700 feet (12.01 H2O) +12.01 (suspect) -- & -- x/x All High Sierra Reporting Stations 24+ hours of light to moderate precip, Next Low approaching & expected off N Cal Coast tomorrow. 2018 Snow Depth & Temps 2018 Post-Storm Current Snowpack: Percent of Average for January 10. N Sierra: 18% Cen. Sierra: 30% S Sierra: 25% Ca State: 26% 2019, the 7th, above	11 Light Showers All High Sierra Weather And the factors creating it Precipitation FORECASTS Quantitative Precipitation Forecasts: RAIN FORECASTS & Best Models Winds? Weather? NorCal Graphics SoCal & SW US All Radar Roads 2018 snowpack 2017 Tropical Pounding Storm Time Snow Depth, 24 hour high & low temps Serious snow accumulation... 2017 NOTE La Nina still puttering along...	12 Clearing into Fine Afternoon LAST WEEK NEXT WEEK TOP LAST WEEK NEXT WEEK TOP LAST WEEK NEXT WEEK TOP
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
13 High Clouds bit windy Last Snow Depth 10th LAST WEEK NEXT WEEK TOP	14 Light Rains Sprinkling HAZARDS THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE THIRTEENTH* *GRAPHICS* NOAA-NOHRSC The High Sierra 1-13-19 SATELLITE SKY EYES MODIS High Sierra Satellite View 2018, 14th Snow Depth & Temps 2017 Snow Depth, 24 hour high & low temps	15 Light to Moderate Precipitation Increasing MANY WARNINGS WINTER STORM BLIZZARD WARNING!! CALENDAR WINTER STORM WARNINGS Fire Zone FLASH FLOOD WARNING YOS VALLEY FLOOD WARNING WIND WARNINGS Up & Down Sierra Any semblance of a High Pressure blocking ridge has been shattered... 2019 *HIGH SIERRA* --Winter-- 8th Temp-Snow Check Last Report: 10th Next Report: January 18, 2019 Let's check our reporting station snow & temp readings aftert today's steadily increasing precip. Snows declined until today... Then exploded. Click the stations below for the latest reports. Storms expected tomorrow evening, & next few days, as a major Low drags a wet front across California. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 46" +10.0 7618 feet (12.70 H2O) +1.0 30 & 27 -/- Echo Peak 59 " +8" 7652 feet (19.40 H2O) +0.8 31 & 26 -/- American-Yuba Watersheds Carson Pass 56" +8 8388 feet (13.40" H2O) +1.1 30 & 23 -/+ Carson-Walker Watersheds Ebbetts Pass 61" +9" 8660 feet (19.10" H2O) +1.3 29 & 20 -/= Leavitt Lake 82 " +6 9602 feet, East Flank (18.70" H20) =0.0 28 & 21 -/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB-WIND 46 & 11 -/- Mokelumne-Stanislaus Watersheds Deadman Creek 12.93" −0.44 9250 feet, West Flank (8.24" H20) +0.38" 27 & 20 -/+ Tuolumne-Merced Watersheds Tenaya Lake 58.51" +4.64" 8163 feet, West Flank (4.89") H20 +0.41 29 & 22 -/+ Tuolumne Meadows 8600 feet, West Flank 43.23" -1.15" (4.94") H20 + .09 37 & 9 -/+ Tioga Pass/Dana 9798 feet 45.76" +0.4 9.51" H20 (+.01) 29 & 8 -/+ Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (12.8) H2O) +0.65 temps bad Mammoth Pass 9500 feet 72.43" Snow +6.9" (16.76" H2O) +6.9 28 & 17 -/+ South Lake Cabin 9580 feet, East Flank (Snow removed ") (21.7 H2O) +0.1 suspect 30 & 18 -/+ Big Pine Sawmill 10200 feet, East Flank 29.90" Snow +6.0" 26 & 16 -/+ Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank TEMPS ONLY -- & -- BAD (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 50.27" +7.28" (x.xx" H2O +x.xx") 26 & 11 -/- (station reporting again!) Crabtree Meadow 10,700 feet (21.40 H2O) +0.39 (suspect) -- & -- x/x All High Sierra Reporting Stations 24+ hours of light to moderate precip, Next Low approaching & expected off N Cal Coast tomorrow. 2018 Snow Depth & Temps	16 Moderate to Heavy Persistant, Steady Precipitation HAZARDS Roads All Radar 2019 Current Snowpack: Percent of Average for January 16. N Sierra: 91% +1% in 6 days!! Cen. Sierra:90% +1% in 6 days! S Sierra: 87% -3% in 6 days! Ca State: 90% -1% in 6 days! Last Reading January 10 Statewide Summary of Snow Water Content PDF Compare Above with 2017 & 2018	17 DIMINISHING PRECIP HIGH SIERRA WINTER WEATHER 2019 STATUS & FORECAST POLAR VORTEX FORECAST All High Sierra Weather And the factors creating it Check this GOES-17 EAST PACIFIC CLEAN IR Satellite View A Selection of Satellite Views LAST WEEK NEXT WEEK TOP LAST WEEK NEXT WEEK TOP	18 DIMINISHED PRECIP 2019 Current Snowpack: Percent of Average for January 18. N Sierra: 113% +22% in 3 days!! Cen. Sierra:110% +20% in 3 days! S Sierra: 110% +23% in 3 days! Ca State: 111% +21% in 3 days! Last Reading January 16 Statewide Summary of Snow Water Content PDF 2019 *HIGH SIERRA* --Winter-- 9th Temp-Snow Check Last Report: 15th Next Report: January 21st, 2019 Let's check our reporting station snow & temp readings aftert the last four days of moderate to heavy precipitation. .Click the stations below for the latest reports. Another Storm expected over the weekend, which could usher in an extended period of Blocking Highs. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 58" +12.0 7618 feet (15.70 H2O) +3.0 31 & 27 +/= Echo Peak 75" +16" 7652 feet (24.00 H2O) +4.6 34 & 26 +/= American-Yuba Watersheds Carson Pass 69" +13 8388 feet (17.0" H2O) +3.6 34 & 25 +/+ Carson-Walker Watersheds Ebbetts Pass 71" +10" 8660 feet (24.20" H2O) +5.1 33 & 24 +/+ Leavitt Lake 100" +18 9602 feet, East Flank (19.70" H20) +1.0 33 & 23 +/+ Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB-WIND 57 & 38 +/+ Mokelumne-Stanislaus Watersheds Deadman Creek 17.59" +4.66 9250 feet, West Flank (10.16" H20) +1.92" 31 & 20 +/= Tuolumne-Merced Watersheds Tenaya Lake 70.19" +11.68" 8163 feet, West Flank (4.90") H20 +0.01 ?? 34 & 22 +/= Tuolumne Meadows 8600 feet, West Flank 54.55" +11.32 " (4.94") H20 + .17" ?? 39 & 18 +/+ Tioga Pass/Dana 9798 feet 55.09" +9.33 9.52" H20 (+.01) ?? 31 & 17 +/+ Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (15.72) H2O) +2.92 temps bad Mammoth Pass 9500 feet 91.64" Snow +19.21" (21.40" H2O) +4.64 34 & 19 +/+ South Lake Cabin 9580 feet, East Flank (Snow removed ") (22.40 H2O) +0.7 suspect 47 & 22 +/+ Big Pine Sawmill 10200 feet, East Flank 45.90" Snow +16.0" 40 & 21 +/+ Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank TEMPS ONLY -- & -- BAD (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 63.26" +12.99" (x.xx" H2O +x.xx") 32 & 15 +/+ (station reporting again!) Crabtree Meadow 10,700 feet (36.54 H2O) +15.14 (suspect) -- & -- x/x All High Sierra Reporting Stations 5 Days of steady Moderate to Heavy precip, Next Low approaching & expected to cross N Cal Coast this weekend, before the High builds in.	19 Drying Day late Moderate Precip Precipitation FORECASTS Quant Precip Forecasts: RAIN FORECASTS & Best Models Winds? Weather? NorCal Graphics SoCal & SW US Roads All Radar LAST WEEK NEXT WEEK TOP 2018 Snow Depth & Temps 2017 Snow Depth, 24 hour high & low temps LAST WEEK NEXT WEEK TOP
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20 Moderate to Heavy Starting Early AM Precipitation The 17th: HIGH SIERRA WINTER WEATHER 2019 *STATUS* & *FORECAST* LAST WEEK NEXT WEEK TOP 2018 Snowpack: Percent of Average for January 20. N Sierra: 17% Cen. Sierra: 27% S Sierra: 21% Ca State: 22% Last: Jan 3, 2018 Statewide Summary of Snow Water Content PDF 2017 Snow Depth, 24 hour high & low temps 2017 Snowpack: Percent of Average for January 20. N Sierra: 143% Cen. Sierra:168% S Sierra: 197% Ca State: 168% Statewide Summary of Snow Water Content PDF Next 2017 Reading Feb. 3, 2017	21 Clear & Sweet WARMING Days COLD Nights 2019 *HIGH SIERRA* --Winter-- 10th Temp-Snow Check Last Report: 18th Next Report: January 26, 2019 Let's check our reporting station snow & temp readings aftert the last 8 days bringing two fronts carrying moderate to heavy precipitation. .Click the stations below for the latest reports. The Storm expected over the weekend is potentially ushering in an extended period of Blocking Highs. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 57" -1.0 7618 feet (17.40 H2O) +1.7 36 & 22 +/- Echo Peak 75" +16" 7652 feet (26.50 H2O) +2.3 36 & 21+/- American-Yuba Watersheds Carson Pass 72" +3 8388 feet (17.7" H2O) +0.7 34 & 19 =/- Carson-Walker Watersheds Ebbetts Pass 67" -4" 8660 feet (24.50" H2O) +0.3 40 & 31 -/- Leavitt Lake 108" +8 9602 feet, East Flank (21.60" H20) +1.9 30 & 14 -/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 51 & 26 -/- Mokelumne-Stanislaus Watersheds Deadman Creek 16.91" -0.68 9250 feet, West Flank (10.43" H20) +.27" 29 & 13 -/- Tuolumne-Merced Watersheds Tenaya Lake 74.84" +4.65" 8163 feet, West Flank (5.40") H20 +0.5 25 & 17 -/- Tuolumne Meadows 8600 feet, West Flank 59.18" +4.63" (5.83") H20 + .89" 33 & 14 -/- Tioga Pass/Dana 9798 feet 61.37" +6.28 9.60" H20 (+.08) ?? 29 & 9 -/- Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (15.70) H2O) -0.02 temps bad Mammoth Pass 9500 feet 91.07" Snow −0.57" (21.80" H2O) +0.40 30 & 12 -/- South Lake Cabin 9580 feet, East Flank (Snow removed ") (22.50 H2O) =0.0 suspect 36 & 12 -/- Big Pine Sawmill 10200 feet, East Flank 45.70" Snow -0.2" 31 & 9 -/- Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank TEMPS ONLY -- & -- BAD (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 67.44" +4.18" (x.xx" H2O +x.xx") 31 & 4 -/- (station reporting again!) Crabtree Meadow 10,700 feet (33.35 H2O) -3.19 (suspect) -- & -- x/x All High Sierra Reporting Stations 8 Days of steady Moderate to Heavy precip, Next Low cross N Cal Coast yesterday, and a Big High is building in. 2018, 21st Snow Depth & Temps	22 Clear & Sweeter BIG HIGH BUILDING-IN see HIGH SIERRA WINTER WEATHER 2019 *STATUS* & *FORECAST* All Maps Precipitation FORECASTS Quant Precip Forecasts: RAIN FORECASTS & Best Models Winds? Weather? NorCal Graphics SoCal & SW US Roads All Radar 2017 Snow Depth, 24 hour high & low temps	23 Clear & Sweet Seven Day Freezing Temperature Probability THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE TWENTIETH* *GRAPHICS* NOAA-NOHRSC The High Sierra 1-20-19 REPORTING STATIONS Temp & Snow Tables by Watershed and Highway Corridor Also See All High Sierra Snowpack Data SATELLITE SKY EYES MODIS High Sierra Satellite View LAST WEEK NEXT WEEK TOP	24 Clear & Sweet HUGE High Built-In DOMINATING WEST US & FAR EAST PACIFIC More Info 17th: HIGH SIERRA WINTER WEATHER 2019 *STATUS* & *FORECAST* All High Sierra Weather And the factors creating it 2019 Current Snowpack: Percent of Average for January 24 . N Sierra: 111% -2% in 6 days!! Cen. Sierra:113% +3% in 6 days! S Sierra: 108% -2% in 6 days! Ca State: 111% No change in 6 days! Last Reading January 18 Statewide Summary of Snow Water Content PDF 2017 Snow Depth, 24 hour high & low temps LAST WEEK NEXT WEEK TOP	25 Clear & Sweet Check this GOES-17 EAST PACIFIC CLEAN IR Satellite View A Selection of Satellite Views LAST WEEK NEXT WEEK TOP 2018 Snow Depth & Temps LAST WEEK NEXT WEEK TOP	26 High Cloudy Also See All High Sierra Snowpack Data 2019 *HIGH SIERRA* --Winter-- 11th Temp-Snow Check Last Report: 21st Next Report: January 30th, 2019 Let's check our reporting station snow & temp readings aftert the last 8 days bringing two fronts carrying moderate to heavy precipitation. .Click the stations below for the latest reports. The Storm expected over the weekend is potentially ushering in an extended period of Blocking Highs. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 50" -7.0 7618 feet (17.70 H2O) +0.3 51 & 38 +/+ Echo Peak 63" -12" 7652 feet (27.00 H2O) +2.5 52 & 39 +/+ American-Yuba Watersheds Carson Pass 62" -10 8388 feet (18.2" H2O) +0.5 45 & 33 +/+ Carson-Walker Watersheds Ebbetts Pass 66" -1" 8660 feet (26.50" H2O) +2.0 56 & 35 +/+ Leavitt Lake 96" -12 9602 feet, East Flank (22.30" H20) +0.7 50 & 40 +/+ Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 58 & 12 +/- Mokelumne-Stanislaus Watersheds Deadman Creek 16.46" -0.45 9250 feet, West Flank (11.30" H20) -0.87" 52 & 25 +/+ Tuolumne-Merced Watersheds Tenaya Lake 66.02" -8.82" 8163 feet, West Flank (6.10") H20 +07 56 & 23 +/+ Tuolumne Meadows 8600 feet, West Flank 49.49" -9.69" (6.41") H20 +0.58" 55 & 19 +/+ Tioga Pass/Dana 9798 feet 51.96" -9.41 9.87" H20 (+0.27) ?? 50 & 27 +/+ Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (16.40) H2O) +0.7 temps bad Mammoth Pass 9500 feet 82.31" Snow −8.76 23.48" H2O) +1.68 53 & 34 +/+ South Lake Cabin 9580 feet, East Flank (Snow removed ") (22.50 H2O) =0.0 suspect 60 & 27 +/+ Big Pine Sawmill 10200 feet, East Flank 34.50" Snow -11.2" 49 & 26 +/+ Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank 51.51" Snow 29.08 H2O +x.xx 48 & 24 ! (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 62.60" -4.84" (x.xx" H2O +x.xx") 46 & 31 +/+ (station reporting again!) Crabtree Meadow 10,700 feet 21.00" Snow (6.66 H2O) -26.69 (suspect) 51 & 27 x/x All High Sierra Reporting Stations 6 Days of steady warming clarity, A Big High built-in for six days. Weak Low today, with trop moisture, off coast, but High keeping it offshore, moving N to S. High Clouds... 2018 Snowpack: Percent of Average for January 26. (Change since Jan 20.) N Sierra: 27% (+10%) Cen. Sierra: 35% (+7%) S Sierra: 24% (+3%) Ca State: 30% (+8%) Last: Jan 20 Statewide Summary of Snow Water Content PDF
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
27 Broken Cloudy still nice, warm LAST WEEK NEXT MONTH TOP	28 Cloudy mild instability increasing, warm High Sierra Forecast Zones 2019 Current Snowpack: Percent of Average for January 28. N Sierra: 106% -5% in 4 days!! Cen. Sierra:106% -7% in 4 days! S Sierra: 101% -7% in 4 days! Ca State: 105% -6% in 4 days! Last Reading January 24 Statewide Summary of Snow Water Content PDF 2018 & 2017: (above) The 20th The Broken Polar Vortex is carrying vast chuncks of Arctic Air to the SE of the US, while disrupting the Jet Stream & progression of Highs & Lows across the Pacific. Seven Day Freezing Temperature Probability Is the Freezing Forecast Above Working? Is it Current? If not, use this: Model Five Day Mean Low Temps NEW Day 3-7 Forecast Minimum Temps 2017, 28th Clear Blue Skies, High off CA Coast 2016 Sierra approaching season-normal snow and precip for first time in years.	29 Cloudy-Misty Misty mild instability warm POLAR VORTEX REPORT LAST WEEK NEXT MONTH TOP	30 Cloudy-Misty Misty mild instability warm Weak Front Should Come Onshore Tonight Overnight Showers HAZARDS Before PM Showers: 2019 *HIGH SIERRA* --Winter-- 12th Temp-Snow Check Last Report: 26th Next Report: February ?, 2019 Let's check our reporting station snow & temp readings aftert the last day and a half days of misting. This evening should bring some precip... Click the stations below for the latest reports. The Storm expected over the weekend is potentially moderate to strong. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 47" -3.0 7618 feet (17.60 H2O) -0.1 45 & 33 -/- Echo Peak 63" =00" 7652 feet (27.00 H2O) =0.0 45 & 34 -/- American-Yuba Watersheds Carson Pass 60" -2 8388 feet (18.3" H2O) +0.1 46 & 28 +/- Carson-Walker Watersheds Ebbetts Pass 66" =0" 8660 feet (26.40" H2O) +0.1 48 & 28 -/- Leavitt Lake 95" -1 9602 feet, East Flank (27.60" H20) +5.3 ?? 40 & 27 -/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 70 & 29 +/+ Mokelumne-Stanislaus Watersheds Deadman Creek 15.79" -0.67 9250 feet, West Flank (11.30" H20) -0.87" 40 & 18 -/- Tuolumne-Merced Watersheds Tenaya Lake 62.19" -62.19" 8163 feet, West Flank (6.10") H20 =00 46 & 21 -/- Tuolumne Meadows 8600 feet, West Flank 46.81" -2.68" (6.41") H20 +0.58" 46 & 17 -/- Tioga Pass/Dana 9798 feet 48.97" -2.99 10.14" H20 (−0.27) ?? 41 & 18 -/- Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (16.38) H2O) -0.2 temps bad Mammoth Pass 9500 feet 80.17" Snow −2.14 25.12" H2O) -1.64 42 & 24 -/- South Lake Cabin 9580 feet, East Flank (Snow removed ") (22.50 H2O) =0.0 suspect 41 & 18 -/- Big Pine Sawmill 10200 feet, East Flank 33.90" Snow -0.6" 36 & 16 -/- Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank 50.33" Snow -1.18 29.26 H2O +0.18 36 & 19 -/- (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 59.43" -3.17" (x.xx" H2O +x.xx") 39 & 20 -/- (station reporting again!) Crabtree Meadow 10,700 feet 19.40" Snow -1.6" (6.76 H2O) -0.1 (suspect) 37 & 18 -/- All High Sierra Reporting Stations 6 Days of steady warming clarity, A Big High built-in for six days. Weak Offshore Low today, with weak trop moisture, off coast, but High keeping it offshore, moving onshore this evening?	31 Overcast Diminishing Showers mild instability warm All High Sierra Weather And the factors creating it Roads All Radar 2018 Snowpack: Percent of Average for January 31. (Change since Jan 26.) N Sierra: 29% (+2%) Cen. Sierra: 35% (+0%) S Sierra: 21% (-3%) Ca State: 30% (+0%) Last: Jan 26 Statewide Summary of Snow Water Content PDF	FEB 1 Impending Storms Anticipated PM HAZARDS Donner Summit Weather Forecast Calendar MOUNTAIN Winter Storm Warning 4 PM Friday to 10 PM Mon THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE 27TH* *GRAPHICS* NOAA-NOHRSC The High Sierra 1-27-19 REPORTING STATIONS Temp & Snow Tables by Watershed and Highway Corridor Also See All High Sierra Snowpack Data 2017 Snow Depth, 24 hour high & low temps LAST WEEK NEXT MONTH TOP	FEB 2 Moderate Precip Virtually None in Sierra Last Night HEAVY TODAY? Front approaches Sierra 10 AM PST Steady Late PM Precip Precipitation FORECASTS Quant Precip Forecasts: RAIN FORECASTS & Best Models Winds? Weather? NorCal Graphics SoCal & SW US Model Five Day Mean Low Temps NEW Day 3-7 Forecast Minimum Temps LAST WEEK NEXT MONTH TOP LAST WEEK NEXT MONTH TOP

BACKGROUND
The trajectory of the cold, rain, and snows of January provide both excellent backpacking experiences and establish the terms, a baseline for this year’s transition into Spring Conditions.

Regular storm activity laid atop a deep pack of Winter snows wrapped in cold temps indicate a long Winter into Spring transition.

Light snows and irregular storm activity sprinkled on a thin snow pack under high temperatures indicates an early and rapid transitions into Spring and Summer conditions.

Important Seasonal Happenings, Transitions, Events & Dates
for
High Sierra Backpackers

Road Conditions, Resupply, Seasonal Transition Concerns, Permit Dates, Weather, Water, and Mosquitoes

Trailhead

Contact
Alex Wierbinski

Lake Tahoe to Mount Whitney

Your guide to backpacking the Sierra Crest, including the Tahoe to Yosemite, Pacific Crest, and John Muir Trails

© 2017 Lake Tahoe to Mount Whitney: Crown Jewel of the Pacific Crest Trail

Important Seasonal Happenings, Transitions, Events & Dates for High Sierra Backpackers